如何处理Asp.Net MVC中的一般异常？

public class GlobalExceptionFilter : ExceptionFilterAttribute
{
    public override void OnException(ExceptionContext context)
    {
        // 处理异常
        context.ExceptionHandled = true;
        context.Result = new ViewResult { ViewName = "Error" };
    }
}

public class FilterConfig
{
    public static void RegisterGlobalFilters(GlobalFilterCollection filters)
    {
        filters.Add(new HandleErrorAttribute());
        filters.Add(new GlobalExceptionFilter());
    }
}

public class ErrorHandlingMiddleware
{
    private readonly RequestDelegate _next;

    public ErrorHandlingMiddleware(RequestDelegate next)
    {
        _next = next;
    }

    public async Task InvokeAsync(HttpContext context)
    {
        try
        {
            await _next(context);
        }
        catch (Exception ex)
        {
            // 处理异常
            context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
            await context.Response.WriteAsync("An error occurred.");
        }
    }
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    // ...
    app.UseMiddleware<ErrorHandlingMiddleware>();
    // ...
}

public async Task<IActionResult> Index()
{
    try
    {
        // 执行操作
    }
    catch (Exception ex)
    {
        // 处理异常
        return View("Error");
    }
}